XLSX (EXCEL) to RB Converter
Convert your xlsx files to rb online & free
Office Open XML Worksheet Sheet
XLSX is a file format created with Microsoft Excel, version from 2007 and younger. This file is a spreadsheet. All data distributed document and stored in the cells. Each cell has a unique address, which is denoted by the letters and Arabic numerals. XLSX file format is based on the Open XML. To reduce the size of the file is compressed ZIP.
Was developed for the first mass-produced e-book reader – Rocket eBook. The format is written in Ruby. RB files are containers holding the entire content for a Rocket eBook device. It has DRM protection capability which is not used in the books published at present due to the format’s lack of popularity.
How to convert XLSX to RB
Select files from Computer, Google Drive, Dropbox, URL or by dragging it on the page.
Choose "to rb"
Choose rb or any other format you need as a result (more than 200 formats supported)
Download your rb
Let the file convert and you can download your rb file right afterwards